SOLYX: SX-SC020 Medium Tint, Blue &ndash; 20% (36&rdquo; wide x 30 ft. Roll) Static Cling, Removable and Reusable 20% Visible Light Transmission Maximum Daytime Privacy. Good for room darkening Great for Car windows to protect infants from bright sunlight! Roll Measures - 36 inches wide x 30 feet long